Answer
$2x^{3}+x^{2}+1$
Work Step by Step
Multiply:
$2x^{3}-x^{2}+x+2x^{2}-x+1$
Collect like terms:
$2x^{3}+(2x^{2}-x^{2})+(x-x)+1$
Simplify:
$2x^{3}+x^{2}+1$
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 1 - Section 1.3 - Algebraic Expressions - 1.3 Exercises - Page 34: 48
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